This item is for sale:Black Behind-the-Ear Hearing Aid, Rechargeable, Smart Noise Reduction For The Elderly, Sound Amplifying Hearing Aid The elderly hearing aids are made of the latest materials, and the shell is made of nano-coating, which is waterproof and sweat-proof. In a small box, easy to carry and go out. Adult hearing aids allow you to easily communicate with others. Easy to use, simple operation for the elderly. Comfortable to wear, lightweight design, comfortable to wear all day. Super effective hearing aid ideal for mild to moderate hearing loss. With noise reduction, these little devices will bring you back to a world of clarity. Very compact and lightweight, it will not burden the ears for long-term use. Great for those who wear glasses or masks. Conspicuous on/off button for easy operation. Size: 4.1*3.3*1CM Material: ABS